Improvement in gearing for metal-planers



KW'. M. BARR.

PLANBR.

No. 108,955. y Patented Nov. l8, 1870.r

.mail iatt @met @film WILLIAM M. BARR, or WILLIAMSPORT, PENNSYLVANIA.-

Letters Patent No. 108,955, dated November H871) atedated October 28,1876.

IMPROVEMENT IN GEARING FOR METALePLANERS..

The Bhedule referred to in these Letters Patent and making part of thesama.

To all lizo/wm. it may cozweru.-

Be it known that I, WILLIAM-'1511. BARR, ofthe cityr of Williamsport,county of Lycoming, -State of Pennsylvania, have invented a new anduseful Improvement in Power-Planets; andfIdo hereby declare that the'following is a full, clear, and 'exact description thereof, referencebeing 'had'to the aeoompanying drawings and to the letters of referencemarked thereon. y

The nature of'. my invention consists in applying a system of gearing topower-planers, in order to suit the speed 'ofthe' planerl to the kind ofnieta-'l being operated on.

When a planer is speeded properly for cast-iron,

Ait runs toofast for east-steel, and too slow for brass.

As my improvement is in the running-gear, Ilwill proceed to describe itsaction only', without reference to the particular kind of flamingemployed.

The pulleys, a a. a, receive motion in the usual manner, giving motionto the shaft b. In the en'd of this shaft a hole is drilled, largeenough to admit the pin It', shown in the enlarged view at'g. 3. Theshaft b is slotted to admit the feather Z, which is secured in pin lc.

The gearing eoc is fitted witha recess large enough between .each pairvof wheels Ato allow the featherl in pin k to be entirely free from thegearing on one side before entering the gearing on the other side. Thisrecessgis shown in the parts colored black in v.- 3.

- From one recess to the other is out a key-way, large enough to permitthe feather l inpin 7c to pass through and engage any one gear-wheel ofthe system, at the will of the operator.

The gears :l d d are all keyed fast to the shaft e.

When it is desired to give the table of the planer the 'slowest speedthe pin 7a is pushed in until the' feather l enters the key-way in e,which communi- Gates its motion to the gear-wheel d. l

On this same shaft e' is a pinion, f, which gears into the master-wheelG, from which the table receives its motion. y

'Lge table of the'planer is then running at its slowest speed, e beingthe smallest driving, and d the.

largest driven wheels ofthe system.

y When the feather Z engages the wheel o' the planer will run as muchfaster as the difference between the wheels-jc and c d and d'. l

To run the planer still faster, the A'feather l should engage the `wheele", and so on for any number of 'wheels that may bedesired.

What I claimas my invention, and desire to secure by .Letters Patent,is-

The combination .fof the recessed gear-wheels c c'o", hollow slottedsha-ft b, pin k, and feat-her l, with the gearfwb'eels' did di',substantially as hereinbefore described. y

g WILLIAIVI` M. BARR.

Witnesses:

E. ANDREWS, H. F. SNYDER.

